# Arq, Inc.

> Clarifo company profile — qualitative business description generated from
> the company's filings. Financial statements, charts and ratios are
> available on Clarifo (https://www.clarifo.com/en/companies/Arq, Inc.).

## Overview

Arq, Inc. is an environmental technology company built around consumable activated carbon products used to remove contaminants from air, water, and soil. Its core products are powdered activated carbon (PAC) and granular activated carbon (GAC), which are sold into regulated end markets such as coal-fired power generation, industrial emissions control, water treatment, and remediation. The company also owns the Five Forks Mine in Louisiana, which supplies lignite feedstock for much of its production, and it acquired the Corbin, Kentucky facility and related coal-waste processing assets to expand its carbon product platform. In 2024 the company rebranded from Advanced Emissions Solutions to Arq, Inc., reflecting its broader focus on advanced purification technologies and new carbon-based applications. Recent disclosures show the business is in a transition phase, with GAC commercialization, facility optimization, and feedstock/process redesign central to its near-term execution.

## Products & services

• Powdered activated carbon (PAC) for contaminant removal
• Granular activated carbon (GAC) for air/water treatment
• Arq Powder / Corbin Wetcake carbon feedstock
• Coal-waste recovery and purification processing
• Activated carbon-based chemicals for APT markets

- **Activated carbon products** (80%) — PAC and GAC products used to capture mercury, PFAS, and other pollutants in regulated treatment applications.
- **Carbon feedstock and intermediate products** (10%) — Arq Powder and Corbin Wetcake materials used as feedstock for GAC and potential new applications.
- **Environmental remediation and specialty chemicals** (10%) — Other chemicals and carbon-based solutions sold into water, soil, and industrial purification markets.

- Powdered activated carbon (PAC) for contaminant removal
- Granular activated carbon (GAC) for air/water treatment
- Arq Powder / Corbin Wetcake carbon feedstock
- Coal-waste recovery and purification processing
- Activated carbon-based chemicals for APT markets

## Customers

Arq sells consumable treatment products to customers that need to remove mercury, PFAS, and other contaminants to comply with environmental rules or operating requirements. Its main buyers are coal-fired power generators, industrial users, and water treatment operators that use activated carbon in ongoing treatment processes rather than as one-time equipment purchases. The company also targets water and soil remediation customers where contaminant capture is tied to regulatory cleanup obligations. Recent disclosures indicate that customer acceptance of new GAC products, state or municipal approvals, and proof-of-concept testing for new applications are important to expanding the addressable customer base. Revenue concentration is meaningful, with the top three customers representing a large share of sales, so customer retention and contract renewal are strategically important.

- **Coal-fired power generation** (primary) — Buys PAC and related carbon products to reduce mercury and other emissions in compliance with air-quality rules.
- **Water treatment** (primary) — Buys activated carbon to remove PFAS and other contaminants from drinking water and industrial water streams.
- **Industrial air and process treatment** (secondary) — Uses consumable carbon products for contaminant capture in manufacturing and processing operations.
- **Water and soil remediation** (secondary) — Purchases carbon-based treatment materials for environmental cleanup and remediation projects.
- **Emerging specialty applications** (emerging) — Potential customers for Arq Powder in asphalt, purified coal, synthetic graphite, and other new markets.

- Coal-fired power plants buying PAC for mercury and pollutant control
- Industrial customers needing air and process-water purification
- Water treatment operators addressing PFAS and other contaminants
- Soil and site remediation customers under environmental cleanup mandates
- Early-stage buyers testing Arq Powder in asphalt, graphite, or other uses
- Large contract customers that purchase consumables over 1-5 year terms

## Geography

Arq is a U.S.-based business with manufacturing and resource assets concentrated in Louisiana and Kentucky. The Five Forks Mine in Saline, Louisiana supplies lignite feedstock for much of the company’s activated carbon production, while the Corbin Facility in Kentucky is used to process recovered bituminous coal fines into Arq Powder and related products. The company’s end markets are primarily domestic U.S. industrial and utility customers, which makes it sensitive to U.S. environmental regulation and domestic power-generation trends. Recent disclosures do not provide a country-by-country revenue split, so the geographic profile should be viewed as operationally U.S.-centric rather than globally diversified.

- Headquartered in the United States with Nasdaq listing in the U.S.
- Five Forks Mine in Saline, Louisiana supplies key lignite feedstock
- Corbin Facility in Kentucky processes recovered coal fines into Arq Powder
- Sales are primarily tied to U.S. utility, industrial, and water-treatment markets
- Exposure is driven by U.S. environmental regulation and domestic power dispatch
- No country-level revenue disclosure was provided in the excerpts

## Strategy

Arq’s near-term strategy is centered on stabilizing and optimizing its GAC platform while preserving liquidity. Management has paused GAC production and idled the Corbin Facility after identifying thermal oxidizer and design limitations, and it is now evaluating production scale, capital needs, and return profiles before committing additional investment. The company is also trying to broaden the use of Arq Powder beyond GAC feedstock into asphalt, purified coal, synthetic graphite, and other specialty applications, which could reduce dependence on a single product path. In parallel, Arq is focusing on cost reduction, maintenance spending, and financing flexibility through cash on hand and its revolving credit facility.

- **Fix and optimize the GAC facility** (short-term) — Commercial success depends on restoring reliable, economic GAC production at the Red River/Corbin platform.
- **Commercialize Arq Powder in new markets** (medium-term) — New applications could diversify revenue and improve returns on the Corbin asset base.
- **Maintain liquidity and operating flexibility** (short-term) — The company needs funding headroom while it works through facility issues and uncertain GAC ramp timing.

- Resolve GAC facility design and thermal oxidizer constraints
- Reassess production scale and capital intensity before reinvesting
- Preserve liquidity through cost controls and borrowing availability
- Commercialize Arq Powder as a feedstock and standalone product
- Expand into adjacent specialty applications such as asphalt and graphite
- Use domestic feedstock and manufacturing assets to support supply security

## Risks

The most important risk is execution risk at the GAC facility, where design flaws, thermal oxidizer limitations, and the need for additional capital upgrades could prevent Arq from achieving commercial production at an economic scale. Because the company’s growth plans depend on GAC, any delay or failure to solve these issues could materially reduce revenue potential and prolong losses. Arq also faces customer concentration risk, since the top three customers account for a large share of revenue and the loss of any one could hurt operating results. More broadly, the business is exposed to changes in environmental regulation, coal-fired power dispatch, water-treatment demand, and customer acceptance of new products, all of which can shift demand for activated carbon. As a small industrial materials company, it also faces commodity/feedstock risk, litigation risk tied to facility design, and volatility in its stock price and financing capacity.

- **GAC facility design and production ramp failure** [critical] — Commercial growth depends on solving thermal oxidizer and design issues at the Red River/Corbin platform.
- **Customer concentration** [high] — The top three customers represented about 42% of revenue, so losing one would materially affect results.
- **Regulatory and demand shifts** [high] — Demand for activated carbon is tied to air-quality, water-quality, and remediation regulations.
- **Litigation and project execution risk** [medium] — Ongoing litigation related to the original GAC facility design can delay remediation and increase costs.
- **Feedstock and operating cost volatility** [medium] — The business depends on coal-based raw materials and manufacturing economics that can shift with supply and energy costs.

- GAC facility design flaws may prevent economic-scale production
- Thermal oxidizer limitations could require more capital than expected
- Customer concentration increases the impact of any lost account
- Demand depends on environmental regulation and utility dispatch patterns
- New product adoption risk for Arq Powder and other applications
- Feedstock and operating cost volatility can pressure margins
- Litigation and project delays can add cost and uncertainty

## Accounting

Arq’s financial statements are heavily influenced by judgmental estimates around long-lived asset impairment, especially for the Corbin Facility and other production assets. The company recorded a large impairment and related write-down in 2025, showing how quickly project economics can change when production assumptions or asset utility deteriorate. Revenue recognition is relatively straightforward because the company generally recognizes revenue as orders are fulfilled, but contract duration and customer concentration make quarterly results sensitive to shipment timing and customer demand. Investors should also watch asset retirement obligations for the Five Forks Mine, which depend on uncertain closure timing and reclamation costs, as well as debt and surety-bond related liabilities that affect liquidity. Stock-based compensation, depreciation/depletion, and any future facility modifications can also materially affect reported earnings and adjusted EBITDA comparisons.

- **Long-lived asset impairment** — Large write-downs can distort year-to-year profitability
- **Revenue recognition on shipment** — Quarterly volatility and cut-off sensitivity
- **Asset retirement obligations** — Balance sheet liability and future cash outflow estimates
- **Depreciation, depletion, and accretion** — EBITDA versus net income differences

- Long-lived asset impairment for Corbin and GAC facilities
- Revenue recognized as orders are fulfilled, so shipment timing matters
- Asset retirement obligations for mine reclamation are estimate-driven
- Depreciation, depletion, and accretion are significant non-cash costs
- Stock-based compensation affects operating expense comparability
- Debt, surety bonds, and restricted cash affect liquidity presentation

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*Last updated: 2026-08-11T04:46:21.389789+00:00*